Fort Gibson Population

1900–2026

3,816

2026 projection

0.1% since 2020 (increase)

01K2K3K4K5K1900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Fort Gibson. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20263,816+20.05%
20253,814-20.05%
20243,816+40.10%
20233,812+180.47%
20223,794-100.26%
20213,804-100.26%
20203,814-200.52%
20193,834-441.13%
20183,878-561.42%
20173,934-120.30%

Showing 10 of 28 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Fort Gibson is growing slower than Muskogee County, Oklahoma, and the U.S.

  • Oklahoma+4.0%
  • United States+3.1%
  • Muskogee County+0.7%
  • Fort Gibson+0.2%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Fort Gibson Demographics

38.6median age

Median age

Female38 yrs
Male38.9 yrs

Adults

2,894
641 seniors (65+) · 22% of adults2,253 other adults

Sex

Female 53.8% · 2,049Male 46.2% · 1,759

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 38 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Fort Gibson Income

$68,378median household income

Median household income

$68,378

Half of households earn more, half earn less

Median earnings

$46,130

Typical yearly pay for a worker 25 or older.

Poverty rate

11.9%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Fort Gibson Marital Status

57% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married57%63%52%
Never married23%21%26%
Divorced14%15%14%
Widowed5%2%7%
Separated<1%0%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201